Just don't do what I did

I used my nano sim from my other phone to test out the Jolla using a sim adapter. Worked fine. When finished, I took it out and put the nano sim back in the other phone.

Then, not wanting to lose the tiny sim adapter and to keep it handy for the next time, I popped the adapter back into the Jolla. As soon as I did it I realised that the 5 sprung contact pins had locked the adapter into place, springing up where the nano sim would have been. Took me about an hour with a slim metal tool to disengage the contact pins and free the adapter....